1 and 4
8m
- Area is LxW
- So working backwards, 72=9xW
- Rearrange. W=8
72 stickers
- 80/10 = 8
- 45/5 = 9
- 8 * 9 = 72
A
36cm² as area means sides must be 6cm long each.
Therefore, total is 24cm
B
- 180 – 25 – 107 = 48
44 stickers
- Use division as a starting point
- So 60/15 = 4
- 55/5 = 11
- Multiply the 2 to get 44 stickers
c) 55
Notice the pattern and sequence. 1 gives 4 gives 9 gives 16. So a change of 3, 5, 7, 9 etc. Apply this pattern
a) See below
b) See below
c) 40
10 x 4
d) 5,050
This can be done with the following calculation
(100×101)/ 2 = 101 x 50 = 5,050
64cm³
The volume of Cube A is 8cm³. So this is 2x2x2. For 64cm, think of cube numbers. So 2x2x2 = 8. 3x3x3 = 27. 4x4x4=64
So double the side of Cube A is 4 so its 64cm³
a) 48cm
See labelling below
b) 108cm²
Area = WxL. 6×18
c) 18
In 18cm across, she can fit 6 (18/3). Given its 6cm tall, she can fit 3 high. So in total 3 rows each with 6 in each row 18
a) See below
Its 2 4×7 triangles that have been transposed from the original question
b) See below
a) See below
b) (2,7)
c) See above for drawing
A pentagon can have 5 obtuse angles but not always has to be the case
25cm²
If perimeter is 20cm, each side is 5cm
Therefore, the area is 5 x 5 = 25cm²
5/8ths is shaded
6
A is 6 x 2. Given we have a 3 x 1, we can fit in 4 rectangles into this side
B is 3 x 2. Given we have a 3 x 1, we ca fit in 2 rectangles into this side
a) 9cm
Perimeter of 36cm . 4 sides. So 9cm per side (36/4)
b) 81cm²
9×9
a) 32cm²
Area of a rectangle = LxW
b) 4cm²
8 triangles altogether = 1/2 LxW
c) 8cm²
4 and 5 in the above
d) 12
6 small triangles from 1,2,3,6,7,8
4 medium triangles from (1,2) , (2,3), (6,7), (7,8)
2 larger triangles from (1,4,5,6) and (3,4,5,8)
a) 68cm²
- Firstly we need to count the number of cubes. This is equal to 30
- For the 30 cubes, these can be split as follows:
-
- There are 12 cubes….the steps if you look from South East to North West angle. 2 sides visible so thats 24 in total
- Next the cubes at the side looking from South West to North East angle. There are 6 visible cubes and in total, 10 surfaces. This is the same on the other side so its 20 visible sides in total
- Finally, 6 cubes have 4 sides showing
- Total therefore is 68 sides showing
-
b) 3 cubes left
Easier than part a for sure!. 30 cubes in part a and 27 in part b
a) 8 small boxes in the bottom layer
- Given the height of the cube is 2cm, a total of 3 high can fit in the larger box
- The bottom layer of the larger box would therefore occupy 2 x 5 x 9 = 90cm³
- But some space would be left around the base. Below is an aerial view
b) 24 small boxes
- As mentioned above, 3 layers in total
- Therefore 8 x 3 =24
- A 1 x 1 would be left as empty space as you would not be able to break a small box and fit it into the sides
a) A & C. Both have a perimeter of 8
b) 4cm²
a) 87m²
- The area of the lawn is 96m² (12 x 8)
- The patio will take 3 x 3 = 9m²
- Therefore, the remaining area of the lawn is 96 – 9 = 87m²
b) 40m
- The perimeter of the lawn is 2 x (12 + 8) = 40m
a) 25%
- Firstly count the number of segments. There are 12 segments
- 3 of the segments are shaded
- Therefore in total, 3/12 are shaded = 25%
b) 3/16
- Each Large Triangle is equivalent to 2 small triangles
- There are 3 small triangles shaded out of a total of 16
c) See below
- 16 squares altogether
- 4/16 = 25% shaded
a) 10cm
- This is a classic question and worth remembering the process to tackle these.
- Perimeter is based on 16 sides.
- Given perimeter is 160cm, each side is 160/16 = 10cm in length
b) 100cm²
10×10
c) 1600cm²
If each Square is 100cm², area of whole figure is 16 x 100
a) x = 2cm, y = 6cm
x = 2cm (8cm – A – B)
y = 6cm (14cm – E)/2
b) 52cm
Perimeter starting at point A = 2+6+2+2+2+6+4+14+4+6+2+2
c) 72cm²
Area = (14×4) + (2×2) + (6×2) = 56 + 4 + 12
16units²
- Break it down into 2 parts
- Shape A = 1/2 x Width x Height. So this is 1/2 x 4 x 4 = 8
- Shape B = 2 x 4 = 8
5 cubes
- Tall Cube. Number of cubes is W * L * H. This equals 2 * 2 * 8. = 32
- Small Cube. Number of cubes is W * L * H. This equals 3 * 3 * 3 = 27
20cm
- Very Standard style question where you are given the area and have to work out the perimeter.
- x * 4 = 24cm² would give the area. So re-arrange this. Where x = Length. 4 is Width
- 24/4 = x
- x = 6
- So if x = 6, the solution is [(2 * 6) + (2 * 4) ]
- Area of the shape is 18 full squares + 7 other squares from partially filled squares
- Total area = 25 squares
a) 15/23
- Consider total area of shape = 23 squares
- Shaded area is equal on all 3 sides. Each side has 5 shaded squares
- Total shaded area = 15/23
b) See below
- 16 triangles in total
- 3/4 shaded = 12/16 shaded
c) i) Shape A DOES NOT have a greater fraction shaded than Shape B
- Shape A – 10 squares altogether. 2/10 shaded = 1/5th shaded
- Shape B – 16 squares altogether. 4/16 shaded = 1/4 shaded
c) ii) Shape B DOES have a greater fraction shaded than Shape A. (Inverse of the statement for i). So this is the right statement
c) iii) This is NOT CORRECT
a) 14
A diagonal is a line that connects two non-adjacent corners. All polygons, except for the triangle, have a number of diagonals. The formula to find the number of diagonals is n(n – 3)/2, where n is the number of sides the polygon has
b) 54
So using the above formula, 12(12-3)/2 = (144-36)/2 = 108/2
a) 21cm
6 x 3.5cm = 21cm
b) 63cm
Pattern 2 has 3 sides per hexagon on the outside. So its 18 sides altogether. 18 X 3.5
c) 19 hexagons
Pattern 3 will require 12 additional hexagons. 1 hexagon will cover 2 of the outsides and the next one 1 outside of pattern 2. And so on. So it will be 1+6+12 (Pattern 1 + Pattern 2 + Pattern 3)
d) 105cm
30 sides will be showing for Pattern 3 on the outside. So 30 * 3.5
8cm
If Square area is 36cm², then each side is 6cm. Perimeter is therefore 24cm. Given the perimeter of the triangle is the same, each side of the triangle must be 24/3 = 8cm
a) See the diagram below
b) (5,4)
c) 17.5cm²
Area: Point A (1,5); B (4,9); C (8,8); D (5,4)
2 Triangles in effect with ABD & BCD.
ABD Area – A to midpoint BD is 3.5. Base is 5 for B to D (co-ordinate for Y axis for B of 9 less co-ordinate for D of 4)
So area of ABD = (1/2 * 3.5 * 5) = 15.75 * 2 = 8.75. * 2 as there are 2 triangles = 17.5
26cm²
Area covered in paint if all 6 cubes are dipped in paint is W*L*D = (1*1*1) * 6 sides * 6 cubes = 36
However, there are 10 covered faces. (remember to count those back to back faces as 2). So in total, 10cm²
a) 12
Area of a cube is 3 x 2 x 2 = 12 (L x H x D)
b) 84
6 x 4 x 4 = 96. Less what was used by Tilly = 84
a) 8cm²
Count the number of full squares first = 5
Then pair up the smaller squares to whole ones. The ones on the left come to 2 squares. The ones on the right that are not complete come to 1 square. Total is 8
b) See below
Note the triangle can be many different permutations. One example below
a) octagon
b) obtuse
(greater than 90 degrees)
c) i) 3.4cm
c ii) 27.2cm
34mm x 8 = 272mm
a) 80cm
Quite a tricky question so key to label like for like sides
X = 13cm. There are 4 of these so thats 13 x 4 = 52cm
Y = 12-5cm (Take away 5 because the height is the central part that is not part of the perimeter. So thats 7 * 4 = 28cm
b) 30cm²
Just divide the total by 4
a) Parallelogram
…A rectangle pushed over sideways
b) 0
A parallelogram has zero lines of symmetry
…A square however pushed over sideways, has 2 lines of symmetry (A rhombus)
c) (2,0)
Always read X Axis first
d) See below
One example of many are below with co-ordinates below of (8,4). Provided you do not use co-ordinates of (5,5) for point E, then any replacement of the X Axis will suffice. So eg (1,4), (2,4) etc all work as does (9,4), (10,4) etc
a) 12cm²
Count whole squares first = 11
Partial half squares = 2 halves = 1
b) See below
a) b) c) See below
a) 12cm²
Each shaded box is 1cm x 1cm.
b) 18cm
Ensure you label each side to confirm all sides are included in the calculation
c) 6×2 rectangle drawn
These types of questions are good practice for Non Verbal Reasoning and particularly cube related shape questions which are common.
Direction you need to turn: Anticlockwise
Angle of turn required: 60 degrees
Like prior word based questions, just break it down 1 sentence at a time:
Start at zero degrees (or think of it as 12 o’clock). 40 degrees clockwise will be to the right
70 degrees anticlockwise will take you a net 30 degrees to the left of zero
90 degrees clockwise turn from there will take you to a net 60 degrees right. So 60 degrees clockwise